[Gmsh] 3D Meshing

[David Colignon]

On 20/08/14 17:25, Carlos Andrés Bernal Castro wrote:
> Hello Dave,
>
> Thank you very much beforehand for your attention. I had a look about what you said regarding that surface between the 291 and
> 299 one, and it seems to be it is defined because when I click on "Elementary Entities", "Add", "New", "Ruled Surface", it shows
> me dotted lines on that surface and it says to me that surface is:
>
> Ruled Surface 295 {272,294,283,290}


OK, I didn't saw it because the surface 295 is not part of Physical Surface(4)

You should make tests with a smaller cube and a coarser mesh, and also try the front3d meshing algorithm.

The good news is that I was able to mesh the volume like this:

gmsh Desktop/Walkie-Talkie.geo -clscale 2 -algo front3d -3

Regards,

Dave


>
> I would be really grateful if you could clarify this to me please as I did not get what you meant. Perhaps, I am missing
> somethin out and I am not realising.
>
> Kind Regards,
>
>
> *Carlos Andrés Bernal Castro*
> Ingeniero Ambiental Y Sanitario
> Universidad De La Salle
>
>
>  > Date: Wed, 20 Aug 2014 16:57:37 +0200
>  > From: David.Colignon at ulg.ac.be
>  > To: bernalcc at lsbu.ac.uk; gmsh at geuz.org
>  > Subject: Re: [Gmsh] 3D Meshing
>  >
>  >
>  > Hi,
>  >
>  > one error: the surface between surfaces 291 and 299, formed by the lines 283, 294, 290 and 272, is not defined, so your 3D
>  > volume is not closed.
>  >
>  > Regards,
>  >
>  > Dave
>  >
>  >
>  > --
>  > David Colignon, Ph.D.
>  > 1er Logisticien de Recherche
>  > CÉCI - Consortium des Équipements de Calcul Intensif
>  > ACE - Applied & Computational Electromagnetics
>  > Université de Liège
>  > Sart-Tilman B28
>  > 10, Grande Traverse
>  > 4000 Liège - BELGIQUE
>  > Tél: +32 (0)4 366 37 32
>  > WWW: http://www.ceci-hpc.be/
>  >
>  > On 20/08/14 14:46, Bernal Castro, Carlos Andres wrote:
>  > > To whom it may concern,
>  > >
>  > > Hello... my name is Andres Bernal and I am a London South Bank University student carrying out a thesis about the influence of
>  > > the buildings shape onto the atmospheric pollutants concentration due to the innovative forms of them nowadays. I am working on
>  > > a building known as "The Walkie-Talkie Building" and the first stage of the project was to create a geometric form of the
>  > > building and the surrounding area using the Gmsh grid generator. In order to move along with the project we need to mesh the
>  > > whole area which is enclosed into a whole domain (a bigger cube). When I mesh the geometry in 1D and 2D, It runs perfectly, but
>  > > when I try with 3D it shows me a lot of errors and I do not know why. I would like you to help me in this issue as I have been
>  > > trying to figure out the problem but I have not been able to and I got stuck for this matter. I would be really grateful,
> thanks.
>  > >
>  > > Any advice would be much appreciated.
>  > >
>  > > Kind Regards,
>  > >
>  > > Andres Bernal
>  > >
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